# Grass hay

> Grass hay typical nutrient profile (as fed, 89% DM): 10% crude protein, 2.2% fat, 0.6 Mcal/kg ME poultry, 0.35% lysine. Energy for poultry, swine and ruminants, amino acids, minerals and fiber, with substitutes.

- Page: https://feedsoft.ai/ingredients/grass-hay
- Family: Forages & fibrous by-products
- Basis: as fed (typical values, not lab results). Source: Feedsoft Formulation reference library (NRC, Rostagno, INRA-CIRAD-AFZ, Feedipedia typical values)
- Market price: not tracked

## Composition

| Nutrient | Value | Unit |
| --- | --- | --- |
| Dry matter | 89 | % |
| Ash | 7.5 | % |

## Energy

| Nutrient | Value | Unit |
| --- | --- | --- |
| ME poultry | 0.6 | Mcal/kg |
| ME swine | 1.1 | Mcal/kg |
| NE swine | 0.62 | Mcal/kg |
| ME ruminant | 1.85 | Mcal/kg |
| NE lactation | 1.08 | Mcal/kg |
| NE maintenance | 1.05 | Mcal/kg |
| NE gain | 0.5 | Mcal/kg |
| Total digestible nutrients | 52 | % |
| DE fish | 0.9 | Mcal/kg |
| DE shrimp | 0.85 | Mcal/kg |

## Protein

| Nutrient | Value | Unit |
| --- | --- | --- |
| Crude protein | 10 | % |
| Lysine | 0.35 | % |
| Methionine | 0.13 | % |
| Methionine + cystine | 0.22 | % |
| Threonine | 0.36 | % |
| Tryptophan | 0.13 | % |
| Arginine | 0.38 | % |
| Valine | 0.45 | % |
| Isoleucine | 0.35 | % |
| Histidine | 0.16 | % |
| SID lysine | 0.18 | % |
| SID methionine | 0.07 | % |
| SID methionine + cystine | 0.12 | % |
| SID threonine | 0.19 | % |
| SID tryptophan | 0.07 | % |
| Rumen degradable protein | 6.5 | % |
| Rumen undegradable protein | 3.5 | % |

## Minerals

| Nutrient | Value | Unit |
| --- | --- | --- |
| Calcium | 0.4 | % |
| Phosphorus (total) | 0.22 | % |
| Phosphorus (available) | 0.08 | % |
| Sodium | 0.03 | % |
| Chloride | 0.55 | % |
| Magnesium | 0.2 | % |
| Potassium | 1.8 | % |
| Sulfur | 0.18 | % |

## Trace minerals

| Nutrient | Value | Unit |
| --- | --- | --- |
| Selenium | 0.1 | ppm |
| Copper | 7 | ppm |
| Zinc | 22 | ppm |

## Fiber

| Nutrient | Value | Unit |
| --- | --- | --- |
| Crude fiber | 32 | % |
| Neutral detergent fiber | 58 | % |
| Acid detergent fiber | 34 | % |

## Fat

| Nutrient | Value | Unit |
| --- | --- | --- |
| Ether extract (fat) | 2.2 | % |
| Linoleic acid | 0.5 | % |

## Closest substitutes (by composition)

- [Soybean hulls](https://feedsoft.ai/ingredients/soybean-hulls.md): 82% similar
- [Alfalfa hay (mid-bloom)](https://feedsoft.ai/ingredients/alfalfa-hay-mid-bloom.md): 76% similar
- [Beet pulp (dried pellets)](https://feedsoft.ai/ingredients/beet-pulp-dried-pellets.md): 63% similar
- [Corn silage (35% DM)](https://feedsoft.ai/ingredients/corn-silage-35-dm.md): 62% similar
- [Sunflower meal](https://feedsoft.ai/ingredients/sunflower-meal.md): 58% similar